While joining steel and/or aluminium sheets on cast aluminium material by using self-pierce riveting technology with semi-tubular rivets, cracking can occur in the material on the button side.
The new RIVSET® ring groove die, minimises cracking and ensures an increased interlock as well as reduced rivet load.

To celebrate 140 years of the company, the Bielefeld-based Böllhoff Group has this year given an extra €140,000 to 15 social projects in the region covering culture, art, literature and sport.
On 20 June 2017 Michael Böllhoff welcomed five representatives to the company headquarters in Bielefeld-Brackwede to hand over a symbolic cheque.

Since 21.09.2017 a general prohibition of surface finishes containing Chromium-VI has been in force throughout Europe. Electroplated zinc coatings with Chromium-III thick-film passivation (VZD) are the future.